linux-kernel - Re: [PATCH 4/7] i2c: s3c2410: Convert to use devm

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Date:	Fri, 23 Nov 2012 12:13:38 +0530
From:	Tushar Behera <tushar.behera@...aro.org>
To:	Sachin Kamat <sachin.kamat@...aro.org>
CC:	linux-kernel@...r.kernel.org, linux-i2c@...r.kernel.org,
	linux-samsung-soc@...r.kernel.org, w.sang@...gutronix.de,
	kgene.kim@...sung.com, patches@...aro.org
Subject: Re: [PATCH 4/7] i2c: s3c2410: Convert to use devm_ioremap()

On 11/23/2012 11:44 AM, Sachin Kamat wrote:
> Hi Tushar,
> 
> On 23 November 2012 11:29, Tushar Behera <tushar.behera@...aro.org> wrote:
>> Signed-off-by: Tushar Behera <tushar.behera@...aro.org>
>> ---
>>  drivers/i2c/busses/i2c-s3c2410.c |   13 ++++---------
>>  1 files changed, 4 insertions(+), 9 deletions(-)
>>
>> diff --git a/drivers/i2c/busses/i2c-s3c2410.c b/drivers/i2c/busses/i2c-s3c2410.c
>> index a274ef7..3446af2 100644
>> --- a/drivers/i2c/busses/i2c-s3c2410.c
>> +++ b/drivers/i2c/busses/i2c-s3c2410.c
>> @@ -996,7 +996,7 @@ static int s3c24xx_i2c_probe(struct platform_device *pdev)
>>                 goto err_clk;
>>         }
>>
>> -       i2c->regs = ioremap(res->start, resource_size(res));
>> +       i2c->regs = devm_ioremap(&pdev->dev, res->start, resource_size(res));
>>
> 
> request_mem_region and ioremap and be replaced using a single
> devm_request_and_ioremap() call.
> 

Thanks. I will redo the patch.

> Also you may squash patches 2-5 into single convert to devm_* functions patch.
> 

Ok. In that case, I will squash these patches to a single patch.

> 
>>         if (i2c->regs == NULL) {
>>                 dev_err(&pdev->dev, "cannot map IO\n");
>> @@ -1016,7 +1016,7 @@ static int s3c24xx_i2c_probe(struct platform_device *pdev)
>>
>>         ret = s3c24xx_i2c_init(i2c);
>>         if (ret != 0)
>> -               goto err_iomap;
>> +               goto err_clk;
>>
>>         /* find the IRQ for this unit (note, this relies on the init call to
>>          * ensure no current IRQs pending
>> @@ -1025,7 +1025,7 @@ static int s3c24xx_i2c_probe(struct platform_device *pdev)
>>         i2c->irq = ret = platform_get_irq(pdev, 0);
>>         if (ret <= 0) {
>>                 dev_err(&pdev->dev, "cannot find IRQ\n");
>> -               goto err_iomap;
>> +               goto err_clk;
>>         }
>>
>>         ret = request_irq(i2c->irq, s3c24xx_i2c_irq, 0,
>> @@ -1033,7 +1033,7 @@ static int s3c24xx_i2c_probe(struct platform_device *pdev)
>>
>>         if (ret != 0) {
>>                 dev_err(&pdev->dev, "cannot claim IRQ %d\n", i2c->irq);
>> -               goto err_iomap;
>> +               goto err_clk;
>>         }
>>
>>         ret = s3c24xx_i2c_register_cpufreq(i2c);
>> @@ -1073,9 +1073,6 @@ static int s3c24xx_i2c_probe(struct platform_device *pdev)
>>   err_irq:
>>         free_irq(i2c->irq, i2c);
>>
>> - err_iomap:
>> -       iounmap(i2c->regs);
>> -
>>   err_clk:
>>         clk_disable_unprepare(i2c->clk);
>>         return ret;
>> @@ -1100,8 +1097,6 @@ static int s3c24xx_i2c_remove(struct platform_device *pdev)
>>
>>         clk_disable_unprepare(i2c->clk);
>>
>> -       iounmap(i2c->regs);
>> -
>>         s3c24xx_i2c_dt_gpio_free(i2c);
>>
>>         return 0;
>> --
>> 1.7.4.1
>>
>> --
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> 
> 
> 


-- 
Tushar Behera
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